Composition and ecological guild structure of birds at Chaudhary Devi Lal University campus, Haryana, India

Documentation of avian diversity is an effective method to monitor the quality of a habitat, along with long-term effects of habitat fragmentation, developmental activities, and urbanization. In the current investigation, the avifauna diversity of the university campus was examined from December 2022 to December 2024. A transect survey was carried out by regular walking on fixed routes in the campus. Eighty-four species from 72 genera, 43 families, and 16 orders were observed. Sixty-six species were resident, five were summer migrants, 12 were winter migrants, and one was a passage migrant. The campus supported 27 (32%) omnivorous, 10 (12%) carnivorous, 31 (37%) insectivorous, six (7%) granivorous, seven (8%) frugivorous, one (1%) nectarivorous, and two (2.4%) piscivorous species. Passerine species had higher relative diversity than non-passerines. Two ‘Near Threatened’ species were recorded and global population trends were 39 stable, 18 decreasing, 18 increasing, and nine unknown. Conservation efforts, including planting of native trees and preserving green cover on campus, should continue to support avifaunal diversity.